From Egg to Larvae 1 (L1) stage: it takes 8 hours from the laying of egg to L1 stage. The whole embryogenesis from sperm entry to hatching takes about 14 hours.
The Dauer stage: C. elegans develops into dauer larvae stage under starvation conditions.
From Dauer to L4: after placing in food, dauer larvae will reach L4 stage.
Any animal or plant, or any part, product, egg, seed or root of any animal or plant. For example: C. elegans embryos can be specimens that one can look at with light microscopy.